Greatest Common Factor of 67, 15, 21, 168

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 67, 15, 21, 168 by common division method
• Greatest Common Factor of 67, 15, 21, 168 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 67

List of positive integer factors of 67 that divides 67 without a remainder.

1,67

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 168

List of positive integer factors of 168 that divides 168 without a remainder.

1,2,3,4,6,7,8,12,14,21,24,28,42,56,84,168

Greatest Common Factor

We found the factors 67,15,21,168 . The biggest common factor number is the GCF number.
So the greatest common factor 67,15,21,168 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 72, 75, 90, 812
• GCF of 31, 23, 62, 331
• GCF of 34, 64, 53, 363
• GCF of 16, 57, 45, 924
• GCF of 46, 77, 19, 390

1. What is the GCF of 67, 15, 21, 168?

Answer: GCF of 67, 15, 21, 168 is 1.

2. How to Find the GCF of 67, 15, 21, 168

Answer: Greatest Common Factor(GCF) of 67, 15, 21, 168 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(67, 15, 21, 168) = 1.